CN1013688B - Method for multiple port plasma spray porous metal abradable coatings - Google Patents
Method for multiple port plasma spray porous metal abradable coatingsInfo
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- CN1013688B CN1013688B CN87103228A CN87103228A CN1013688B CN 1013688 B CN1013688 B CN 1013688B CN 87103228 A CN87103228 A CN 87103228A CN 87103228 A CN87103228 A CN 87103228A CN 1013688 B CN1013688 B CN 1013688B
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/04—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the coating material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/16—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed
- B05B7/22—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc
- B05B7/222—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc
- B05B7/226—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas incorporating means for heating or cooling the material to be sprayed electrically, magnetically or electromagnetically, e.g. by arc using an arc the material being originally a particulate material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/115—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces by spraying molten metal, i.e. spray sintering, spray casting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F7/00—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression
- B22F7/002—Manufacture of composite layers, workpieces, or articles, comprising metallic powder, by sintering the powder, with or without compacting wherein at least one part is obtained by sintering or compression of porous nature
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C4/00—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
- C23C4/12—Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge characterised by the method of spraying
- C23C4/134—Plasma spraying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
- Y10T428/249967—Inorganic matrix in void-containing component
- Y10T428/24997—Of metal-containing material
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Plasma & Fusion (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Manufacturing & Machinery (AREA)
- Composite Materials (AREA)
- Electromagnetism (AREA)
- Coating By Spraying Or Casting (AREA)
- Nozzles (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Abstract
An apparatus and method are described for simultaneously thermal spraying at least two types of powders onto a substrate, wherein both powder types are carried by a single spray stream and impacted upon the substrate. According to the invention, the different powder types are injected into the spray stream through separate powder ports in such a manner that there is substantially no mixing of the powder types in the spray stream. The spray system and substrate being sprayed are moved relative to each other to produce a homogeneous sprayed powder deposit.
Description
Referring to No. the 815th, 616, the U.S. Patent application that awaits the reply simultaneously with the application and transfer the possession of, this application is applied on January 2nd, 1986 by Na Saweiji people such as (S.T.Narsavage).
The relevant a kind of method of on a matrix, doing spraying of the present invention.Concrete relevant with single spraying device, two or more powder of heat spray simultaneously on matrix.
Internal combustion turbine and other turbines have the plurality of rows blade, are being roughly columnar shell internal rotation.Blade tip is moving near the housing place during blade rotation.Improving a method of the efficient of this class machine, is the leakage that as far as possible reduces the working fluid between blade tip and housing.Time is found earlier, and available blade and tightness system reduce this leakage, and in this tightness system system, the blade tip friction is attached to the denuded sealing material on the casing inner surface.
Porous metal structure is particularly suitable for doing to denude sealing member usefulness, because sealing member is with favourable speed abrasion when contacting with rotating paddle.Making a method of porous seal, is with plasma spraying metal and polymer powder last current state particulate mixture, and general as bright each (Longo) at United States Patent (USP) the 3rd, 723, sets forth in No. 165.But, when by the two or more powder of bright each method spraying,, at United States Patent (USP) the 3rd, 912, disclose in No. 235 as Jansen (Janssen) if particulate proportion or size not simultaneously, are difficult to keep uniform particles to be mixed.Overcome a trial of this problem, in No. the 4th, 386,112, Eton people's such as (Eaton) United States Patent (USP), narration arranged, wherein metal and ceramic powder particle are sprayed into plasma flow respectively, and in jet flow intermingling.Be presented to No. the 3rd, 020,182, the United States Patent (USP) of Charles Daniels (Daniels), the 4th, 299, No. 865 of the graceful people such as (Clingman) of crin, the 4th, 366, No. 276 patents of Bill people such as (Bill) etc. have all also been represented the prior art situation.
Though the level of plasma spraying technology is very advanced, can denudes the quality and the reproducibility of sealing member according to prior art control and still have any problem.Therefore, need seek to improve the method that sealing member is made.
According to the present invention, with single thermospray apparatus, at least two kinds of dissimilar powder of deposition on matrix, these dissimilar powder seldom mix in high temperature gas flow during spraying.More particularly, with dissimilar powder, with dividing other powder spout, under the feeding speed of control respectively, spray in the high temperature and high speed air-flow simultaneously; The arrangement of powder spout and the adjusting that supplies powder speed make first kind of powder be carried by the height of center isothermal segment along air-flow, collide matrix, and second kind of powder particle carried by the lower part of the exospheric temperature of air-flow simultaneously, collides matrix.Because other advance route of branch is arranged, first powder particle and second powder particle in the air-flow seldom mix; When powder is sprayed into air-flow, matrix phase is moved for air-flow, just can form uniform composite sedimentary layer.
The air-flow medium silt seldom blended dust and mix before entering air-flow than powder (as bright each patent), or powder mixes (as people's such as Eton patent) and can produce quality significantly improved settled layer is arranged in air-flow.
The present invention be specially adapted to be coated with simultaneously different temperature of fusion such as the 815th, No. 616 described powder of U.S. Patent application, for example metal and plastic powders.Metallic particles is sprayed into the high-temperature part of air-flow, and their residence times in air-flow are longer than the residence time that sprays into the plastic grain in the air-flow low temperature part.Metallic particles and plastic grain all do not have too much gasification.The microtexture of spray deposited layer manifests polymer beads uniform distribution in the metal matrix.Spraying is heated to polymkeric substance evaporable temperature with settled layer later, and the result just produces porous metal structure.
Above purpose of the present invention and other purposes, characteristics and advantage, from hereinafter to the narration of most preferred embodiment and the accompanying drawing just can solve clearer.
Brief description is as follows:
Fig. 1 represents implementing the synoptic diagram of the present invention's equipment of great use;
Fig. 2 is sprayed on the synoptic diagram of distribution later on the matrix for metal-powder and polymer powder.
The present invention is relevant to use single spraying equipment, the method for the two or more dissimilar powder of thermospray simultaneously on matrix.For simplicity, hereinafter discuss only at two kinds of powder of heat spray.Thermospray one speech, expression plasma spraying, the similar method of burning spraying and other deposited powders on matrix.
Be convenient to most the present invention is discussed referring to Fig. 1.Matrix to be applied among this figure represents that with the number of marking on a map 10 equipment that is used for deposited powder on matrix 10 is represented with label 12.Though do not show among the figure, the part of paint finishing is powder feeder unit and associated equipment; Also expression in the setting drawing that matrix 10 is moved relative to one another with equipment 12.The non-key of the present invention of the concrete move mode of matrix 10 and equipment 12 can keep equipment 12 stationkeeping, matrix 10 is moved, or keep matrix 10 stationkeeping and mobile equipment 12, or matrix 10 and equipment 12 all moves.Being familiar with present technique person can adopt suitable running gear for paint finishing, so that adapt to the needs of concrete deposition method best.
See accompanying drawing again, equipment 12 has a spray gun subassembly 14.For ease of the discussion of this paper, spray gun subassembly 14 is the plasma arc pattern.Be familiar with present technique person and understand, in the typical plasma arc rifle subassembly 14, have the electrode that leaves mutually to produce high-temperature electric arc.Basic gas and assist gas, helium for example, argon or nitrogen, or its gas mixture passes through in electric arc, and ionization forms the plasma flame or the air-flow 15 of high temperature and high speed, and the direction along muzzle 19 flows to matrix 10 from muzzle 19.In order to tolerate the high temperature of plasma body 15, muzzle 19 generally has water cooling.
Erecting frame 16 usefulness device not shown in the figures is fixed on spray gun subassembly 14 front ends 17.Nozzle 18 is fixing on support 16, and shower cooling air-flow on matrix 10 prevents that matrix 10 is overheated by plasma body 15.The cooling gas that is suitable for is for example as nitrogen, argon or air etc.Hereinafter more go through, the arrangement of the mouth that dusts will divide other powder stream to introduce plasma flow 15.First dusts mouthfuls 22, first kind of powder particle 23 is introduced air-flows 15, the second dust mouthfuls 24 with second kind of powder particle 25, introduces air-flow 15.Illustrate two first and dust mouthfuls 22 180 ° approximately at interval, two second dust mouthfuls 24 approximately apart from one another by 180 °, roughly align diametrically with first dust mouthfuls 22 the position.Yet number and its relative position of the mouth 22,24 that dusts are also non-key in the present invention.First dusts mouthfuls 22 in second dust mouthfuls 24 the axial upstream, and its structure and arrangement are convenient for from the distance A place of spray gun subassembly 14 front ends 17, spray into first powder 23 to air-flow 15; Second dust mouthfuls 24 in the downstream apart from the B place, spray second powder 25 to air-flow 15.Spray gun front end 17 is represented with C with the distance of matrix 10.The arrangement of mouth 22,24 because first and second dusts, and owing to spray into the speed and the speed of the powder 23,25 of air-flow 15 respectively, powder 23,25 seldom mixes in air-flow 15.In addition, the residence time of second powder 25 in plasma flow 15 is shorter than the residence time of first powder.Its meaning will further be discussed hereinafter.
Powder 23,25 is supplied with the mouth 22 and 24 that dusts with pipeline 32 and 34 respectively.Pipeline 32, the 34 general argons of using are as the carrier gas supercharging.Article two, supply line 32 respectively is connected with other powder feeder that holds first powder 23 of branch, and two supply tube cell road 34 and divide other powder feeder that holds second powder 25 to be connected.All powder feeders all can independently be controlled, and carry to the mouth that dusts respectively by particular rate and speed, pass through from its inside.
In distance spray gun front end 17 downstream far away of healing, plasma jet 15 from air-flow axis 26 diametrically more to external diffusion.Total shape of the air-flow 15 that causes is with conical similar.Learn the plasma flow 15 actual center stream 40 of flowing gas and the radially outer edge streams 42 of flowing gas of comprising from observation.The downstream when increasing, the diameter d of center stream 40
COnly slightly increase, and when downstream during apart from increase, outer rim flows 42 diameter d
OHave a big increase a lot.Gas temperature in the center plasma flow 40 and speed, more quite a lot of greatly than the temperature and the speed of outer rim gas body 42.Select the working parameter of each first powder feeder, make the basic successive powder stream of first kind powder, by corresponding first powder supplying hole 22, directly injecting gas center stream 40.First kind of powder 23 transmitted by center stream, until colliding with matrix 10.Test result is shown bright, and radially deviation of 40 outsides is flowed at the seldom oriented center of first powder 23, is because center stream 15 has quite high axial momentum significantly, though have the effect that other power produces bias current.
As seen in Figure 1, the exit end 44 of each second powder supply port 24, at the radial outside of each first powder supply port, 22 exit end 46, and at its axial downstream.Working parameter to each second powder feeder is selected, and makes the second type powder, 25 injected plasmas stream 15, and does not enter outer rim stream 42 transmission of center stream 40, the second powders 25 of gas by gas, until colliding matrix 10.Whether different powders 23,25 correctly inject in the corresponding plasma flow part 40,42, are sent to matrix 10 by two portions, can be by the measure of spread of estimation air-flow 15 medium silts 23,25.The method of estimation is hereinafter by the discussion explanation to Fig. 2.
Gas outer rim stream 42 carries second kind of powder 25, enclose the gas center and flow the rotation of 40 pitch of the laps, and 23 following currents of first powder is moved to matrix 10.Because first powder 23 and second powder 25 are divided other air-flow 40,42 to transmit to matrix 10, particle 23,25 does not have the mixing of the considerable degree of perceiving in plasma flow.These are just different with plasma spraying process of the prior art, in the method in the past, dissimilar powders in plasma flow or hybrid chamber, are done conscious mixing, send in the plasma flow by single powder supply port then.
Shown in Figure 2, first and second powder 23,25 in plasma flow 15, does not have very big mixing respectively.The photography of matrix 10 is shown in this figure letter, applies a second by the inventive method in the above.This is to obtain by place a gate type device between spray gun subassembly 14 and matrix 10, and gate is opened a second, powder 23,25 injected plasmas stream 15.As seen from the figure, first powder 23 is stayed in the central gas stream 40, and second powder is stayed in the radially outer edge part 42 of air-flow, and two kinds of powder only have a spot of mixing.(note to produce the spray gun subassembly 14 of powder distribution form shown in Figure 2, have only one first to dust mouthfuls 22 and one second and dust mouthfuls 24.Dust mouthfuls 24 the time when dusting mouthfuls 22 and two second, just produce different forms with two first.But first and second kinds of powder still do not have a lot of mixing.）
Most of powder is stayed in the corresponding section of plasma flow, is important to the repeatability of method for guaranteeing and product.Regulate the working parameter of plasma torch subassembly, the feature (temperature, speed etc.) of center stream and outer rim stream 40,42 can be controlled at respectively in the optimum range, to spray dissimilar powder.In other words, the characteristic of adjusting center stream part flows the characteristic of part to produce the top condition of the spraying second class powder to produce the top condition of spraying first kind powder and regulate outer rim simultaneously.
The present invention is specially adapted to the powder that the heat spray deposits different temperature of fusion and proportion, forms the porous metal structure of the turbomachinery such as gas turbine.When making this deposition, first kind powder can be an oxidation-resistant metallic material, and such as MCrAlY, M is a nickel, cobalt, iron or its mixture.This component is for example as United States Patent (USP) the 3rd, 676,085; 3,928,026 and 4,419, the narrator of institute in No. 416; Content this paper citation of these patents as a reference.Component to some MCrAlY has modification, and other adds precious metal, refractory metal, and hafnium, silicon and rare earth elements etc. are referring to No. the 4th, 419,416, United States Patent (USP) for example.In No. the 815th, 616, the U. S. application that awaits the reply simultaneously with the application and transfer the possession of, narrated a kind of MCrAlY component of particularly suitable with refractory metal remodeling.Simpler metal component such as nichrome also can spray with metal-powder simultaneously by method spraying of the present invention, and the second class powder that produces vesicular structure is a decomposable polymer.Metallizing and polymer powder are last on matrix, and the part of band coating is heated to the temperature of the polymkeric substance that is enough to volatilize, and cause the porous metal structure that is suitable for the denuded sealing member of making gas turbine.Sealing member by the present invention makes has shown better properties than sealing material of the prior art.
The most handy rotary-atomizing method of metal-powder or the method for tachy steroling (RSR-rapid solidificationrate) are made, described in same transferee's United States Patent (USP) 4,178, No. 335 and 4,284, No. 394.Compare with the powder of producing with other technologies, general relatively more even with the powder particle size that the RSR method is produced, is generally sphere, high surfaces smooth finish is arranged.The irregular powder of this powder and shape and size relatively easily reaches the relevant equipment from powder feeder and flows through.In case enter the center stream part of this plasma body, the uniform smooth particle of this size and shape all is heated to temperature about equally, the product that makes spraying method and produce with this method has higher reproducibility than method of the prior art.For obtaining higher reproducibility, the size and dimension of polymer beads also should be even, and smooth finish surface is arranged.
As an example of the present invention, will spray jointly with the refractory materials remodeling MCrAlY powder and the poly methyl methacrylate particle of RSR manufactured, make the settled layer that coating aftertreatment (as mentioned below) arranged, be used for the denuded sealing of gas turbine.The polymkeric substance powder is available from E.I.Du Pont Company, name of product be " Liu Saite " (Lucite), 4F level powder; Quality is bright and clean, sphere, and size (diameter) scope is about the 60-120 micron.Metal powder grain also is bright and clean spheroid, and size is about the 50-90 micron.The proportion of polymer beads and metallic particles is respectively 0.9 gram/cubic centimetre and 8.6 gram/cubic centimetres approximately.
Polymer beads and metallic particles are with dividing other 1250 serial plasmatron powder feeder (California, USA Te Siding (tustin) pula, city Si Madayin (Plasmadyne) company product), supply with to plasma spray system, this system comprises Mei Teke (Metco) 7M type spray gun and Mei Te section 705 type nozzles (New York, United States Wei Site Berli (westbury) city Mei Teke company product).Referring to Fig. 1, the distance A that nozzle and metal spray into a little is about 0.55 centimetre; Nozzle and polymkeric substance spray into a little be about 3.3 centimetres apart from B; The distance C of nozzle and matrix is about 18 centimetres.First radial distance that dusts mouthful exit end 46 and plasma flow axis 26 is about 0.7 centimetre; Second distance of dusting mouthful exit end 44 and plasma flow axis 26 is about 1.5 centimetres.The concrete spray parameters that is used for deposited powder is listed in the table I.Spray form with these parameter generating is similar with form shown in Figure 2.
Produce the metal-polymer powder deposition
Spray parameters
The power input (kilowatt) 20.3-21.7
Basic flow (standard cubic meter/hour) 1.4-2.1
Substreams (standard cubic meter/hour) 0.3-1.0
The carrying air-flow (standard cubic meter/hour) 0.1-0.2
Metal-powder delivery rate (gram/minute) 50.0-70.0
Polymer powder delivery rate (gram/minute) 8.0-12.0
Spray gun with respect to drift angle≤20 of matrix ° to vertical
To settled layer with the spraying of table I parameter, with its microtexture of metallographic photography check, find it is characterized by, have 1/3rd to be metallic particles approximately, 1/3rd is that polymer beads and 1/3rd is hole.From the particulate form, illustrate that most particles are by the thermal softening of plasma flow.The amount of the powder of actual deposition does not relatively have excess powder to be vaporized by plasma body on the amount of the powder that injects jet flow and the matrix.In the spraying technology of prior art, metal-powder and polymer powder are all transmitted by the centre portions of plasma flow, and the polymer beads of observing a great deal of is gasified, and the reproducibility of method and the product that is produced are had adverse influence.This excessive vaporization is the temperature because of the plasma flow centre portions, far surpasses the vaporization temperature of polymkeric substance.Therefore, in technology of the present invention, because polymer beads passes through in the lower radially outer edge part of the temperature of plasma flow, so compare with prior art, the amount of polymer beads vaporization reduces quite a lot of.
After the spraying, the metal/polymer settled layer is handled,, caused porous metal structure to eliminate polymer beads.The ideal method is that settled layer was heated two hours in about 355-385 ℃ not oxidizing atmosphere.This temperature is enough to make polymkeric substance to volatilize fully.Polymkeric substance also available appropriate solvent and so on is made chemical scavenging.The porosity of spray deposited layer is about 2/3rds behind the removing polymkeric substance.
Compare according to this porous spraying MCrAlY settled layer of principle of the invention manufacturing and the sealing material of prior art, shown obvious superiority.The sealing material that is suitable for must can be denuded, and promptly when contacted by the parts of high-speed motion, for example by the rotation blade tip of internal combustion turbine, or by the cutting edge of labyrinth is sharp when contacting, can be easy to brittle disintegration.Yet sealing material must keep its integrity again when being subjected to particle erosion or other mechanical stresses.In laboratory test and real engine test, porous of the present invention can be denuded the sealing member comparison of metal with prior art, but has shown better abrasiveness and resistance to fouling.
Though to the present invention with reference to a most preferred embodiment separate the explanation of mediating a settlement, the person skilled in the art is appreciated that and can does various variations to the form and the details of inventing, and do not exceed the spirit and scope of the invention in claims.
Claims (2)
1, a kind of method that sprays porous metal erosion resistant coating, the characteristics of settled layer are the uniform mixing that first powder and second powder are arranged, method comprises the steps:
Produce the high-speed and high-temperature plasma flow, directing plasma flow flows to matrix, and the central portion temp of plasma flow is higher than the peripheral edge portion of plasma flow; In first kind powder injected plasma stream; Simultaneously with in the second class powder injected plasma stream;
It is characterized in that, realize injecting first kind powder in plasma flow, make this first kind powder transmit by the plasma flow centre portions and impact matrix; Realize injecting the second class powder in plasma flow, make this second class powder be transmitted by the plasma flow peripheral edge portion and impact matrix, the second class powder does not mix with first kind powder basically in plasma flow; The plasma flow that will contain first and second powder moves with respect to matrix, forms uniform powder settled layer on matrix; Remove second powder in the spray deposited layer again, to form the porous settled layer of first powder.
2, the method for claim 1 is characterized in that first powder is a metal, and second powder is a polymkeric substance.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US856,897 | 1986-04-28 | ||
| US06/856,897 US4696855A (en) | 1986-04-28 | 1986-04-28 | Multiple port plasma spray apparatus and method for providing sprayed abradable coatings |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN87103228A CN87103228A (en) | 1987-11-04 |
| CN1013688B true CN1013688B (en) | 1991-08-28 |
Family
ID=25324734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87103228A Expired CN1013688B (en) | 1986-04-28 | 1987-04-28 | Method for multiple port plasma spray porous metal abradable coatings |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4696855A (en) |
| EP (1) | EP0244343B1 (en) |
| JP (1) | JP2586904B2 (en) |
| CN (1) | CN1013688B (en) |
| AU (1) | AU582989B2 (en) |
| BR (1) | BR8702018A (en) |
| CA (1) | CA1257511A (en) |
| DD (1) | DD259586A5 (en) |
| DE (1) | DE3766408D1 (en) |
| IL (1) | IL82323A (en) |
| NO (1) | NO170060C (en) |
| YU (1) | YU45820B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705464B (en) * | 2009-11-20 | 2011-10-26 | 华东理工大学 | Method for preparing thermally-sprayed iron-based powder porous surface heat exchange tube |
Families Citing this family (59)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| LU86431A1 (en) * | 1986-05-16 | 1987-12-16 | Glaverbel | METHOD FOR FORMING A REFRACTORY MASS ON A SURFACE AND MIXING PARTICLES TO FORM SUCH A MASS |
| US4753849A (en) * | 1986-07-02 | 1988-06-28 | Carrier Corporation | Porous coating for enhanced tubes |
| DE3625659A1 (en) * | 1986-07-29 | 1988-02-04 | Utp Schweissmaterial | METHOD FOR COATING COMPONENTS, AND DEVICE FOR CARRYING OUT THE METHOD |
| US5262206A (en) * | 1988-09-20 | 1993-11-16 | Plasma Technik Ag | Method for making an abradable material by thermal spraying |
| US4853515A (en) * | 1988-09-30 | 1989-08-01 | The Perkin-Elmer Corporation | Plasma gun extension for coating slots |
| LU87602A1 (en) * | 1989-10-05 | 1991-05-07 | Glaverbel | PROCESS FOR FORMING A REFRACTORY MASS AND SPRAY LANCE OF A MIXTURE OF PARTICLES |
| GB2242143B (en) * | 1990-03-23 | 1993-07-28 | Rolls Royce Plc | Abradable seal coating and method of making the same |
| US5122182A (en) * | 1990-05-02 | 1992-06-16 | The Perkin-Elmer Corporation | Composite thermal spray powder of metal and non-metal |
| US5536022A (en) * | 1990-08-24 | 1996-07-16 | United Technologies Corporation | Plasma sprayed abradable seals for gas turbine engines |
| US5472487A (en) * | 1991-01-18 | 1995-12-05 | United Technologies Corporation | Molybdenum disilicide based materials with reduced coefficients of thermal expansion |
| US5690844A (en) * | 1996-08-26 | 1997-11-25 | General Electric Company | Powder feed for underwater welding |
| US5951892A (en) * | 1996-12-10 | 1999-09-14 | Chromalloy Gas Turbine Corporation | Method of making an abradable seal by laser cutting |
| US6402841B1 (en) | 1997-02-21 | 2002-06-11 | Akzo Nobel N.V. | Glue application device with glue conduit surrounding hardener conduit |
| TW440472B (en) * | 1997-03-12 | 2001-06-16 | Akzo Nobel Nv | A method for supplying a fluid |
| DE69717805T2 (en) * | 1997-07-18 | 2003-09-04 | Ansaldo Ricerche S.R.L., Genua/Genova | Method and device for producing porous ceramic coatings, in particular heat-insulating coatings, on metallic substrates |
| US5879753A (en) * | 1997-12-19 | 1999-03-09 | United Technologies Corporation | Thermal spray coating process for rotor blade tips using a rotatable holding fixture |
| US6089825A (en) * | 1998-12-18 | 2000-07-18 | United Technologies Corporation | Abradable seal having improved properties and method of producing seal |
| DE19926818B4 (en) * | 1999-06-12 | 2007-06-14 | Alstom | Protective layer for turbine blades |
| SG88799A1 (en) * | 1999-12-17 | 2002-05-21 | United Technologies Corp | Abradable seal having improved properties |
| US6352264B1 (en) | 1999-12-17 | 2002-03-05 | United Technologies Corporation | Abradable seal having improved properties |
| JP4029375B2 (en) * | 2000-06-21 | 2008-01-09 | スズキ株式会社 | Mixed powder spraying method |
| US6533285B2 (en) | 2001-02-05 | 2003-03-18 | Caterpillar Inc | Abradable coating and method of production |
| US6537021B2 (en) | 2001-06-06 | 2003-03-25 | Chromalloy Gas Turbine Corporation | Abradeable seal system |
| JP2003129212A (en) * | 2001-10-15 | 2003-05-08 | Fujimi Inc | Thermal spray method |
| FR2854086B1 (en) * | 2003-04-23 | 2007-03-30 | Saint Gobain Pont A Mousson | FLAME COATING METHOD AND CORRESPONDING DEVICE |
| CN1298881C (en) * | 2004-10-28 | 2007-02-07 | 河北工业大学 | Reaction plasma spraying reaction chamber apparatus |
| DE102004055199B4 (en) * | 2004-11-16 | 2009-10-22 | Daimler Ag | Manufacturing method for sliding layers of composite material |
| US20070298187A1 (en) * | 2005-01-26 | 2007-12-27 | Volvo Aero Corporation | Thermal Spraying Method and Device |
| ITFI20050142A1 (en) * | 2005-06-23 | 2006-12-24 | Colorobbia Italiana Spa | MATERIALS FOR THE COVERING OF CERAMIC BODIES, PROCESSED FOR THEIR PREPARATION THEIR USE AND THE CERAMIC ARTICLES THAT INCLUDE THEM |
| SE529053C2 (en) | 2005-07-08 | 2007-04-17 | Plasma Surgical Invest Ltd | Plasma generating device, plasma surgical device and use of a plasma surgical device |
| SE529056C2 (en) | 2005-07-08 | 2007-04-17 | Plasma Surgical Invest Ltd | Plasma generating device, plasma surgical device and use of a plasma surgical device |
| SE529058C2 (en) | 2005-07-08 | 2007-04-17 | Plasma Surgical Invest Ltd | Plasma generating device, plasma surgical device, use of a plasma surgical device and method for forming a plasma |
| US20070269151A1 (en) * | 2006-05-18 | 2007-11-22 | Hamilton Sundstrand | Lubricated metal bearing material |
| EP1923478A1 (en) * | 2006-11-14 | 2008-05-21 | Siemens Aktiengesellschaft | Roughend bond coating |
| US7928338B2 (en) | 2007-02-02 | 2011-04-19 | Plasma Surgical Investments Ltd. | Plasma spraying device and method |
| US7892652B2 (en) | 2007-03-13 | 2011-02-22 | United Technologies Corporation | Low stress metallic based coating |
| WO2008127227A1 (en) * | 2007-04-11 | 2008-10-23 | Coguill Scott L | Thermal spray formation of polymer coatings |
| US8735766B2 (en) | 2007-08-06 | 2014-05-27 | Plasma Surgical Investments Limited | Cathode assembly and method for pulsed plasma generation |
| US7589473B2 (en) * | 2007-08-06 | 2009-09-15 | Plasma Surgical Investments, Ltd. | Pulsed plasma device and method for generating pulsed plasma |
| EP2206805A1 (en) * | 2009-01-08 | 2010-07-14 | Siemens Aktiengesellschaft | MCrAIX coating with different chrome and aluminium contents |
| US8613742B2 (en) | 2010-01-29 | 2013-12-24 | Plasma Surgical Investments Limited | Methods of sealing vessels using plasma |
| US9598972B2 (en) | 2010-03-30 | 2017-03-21 | United Technologies Corporation | Abradable turbine air seal |
| US8562290B2 (en) | 2010-04-01 | 2013-10-22 | United Technologies Corporation | Blade outer air seal with improved efficiency |
| US9089319B2 (en) | 2010-07-22 | 2015-07-28 | Plasma Surgical Investments Limited | Volumetrically oscillating plasma flows |
| US8692150B2 (en) * | 2011-07-13 | 2014-04-08 | United Technologies Corporation | Process for forming a ceramic abrasive air seal with increased strain tolerance |
| US10279365B2 (en) | 2012-04-27 | 2019-05-07 | Progressive Surface, Inc. | Thermal spray method integrating selected removal of particulates |
| FR2999457B1 (en) | 2012-12-18 | 2015-01-16 | Commissariat Energie Atomique | METHOD FOR COATING A SUBSTRATE WITH A CERAMIC ABRADABLE MATERIAL, AND COATING THUS OBTAINED |
| WO2015142411A2 (en) * | 2014-02-07 | 2015-09-24 | United Technologies Corporation | Article having multi-layered coating |
| KR102459847B1 (en) * | 2014-12-04 | 2022-10-26 | 프로그레시브 서피스, 인코포레이티드. | Thermal spray method integrating selected removal of particulates |
| US9896756B2 (en) | 2015-06-02 | 2018-02-20 | United Technologies Corporation | Abradable seal and method of producing a seal |
| WO2017058489A1 (en) * | 2015-09-30 | 2017-04-06 | Apple Inc. | Methods for color and texture control of metallic glasses by the combination of blasting and oxidization |
| US10697464B2 (en) | 2016-07-29 | 2020-06-30 | Raytheon Technologies Corporation | Abradable material |
| US20180030586A1 (en) | 2016-07-29 | 2018-02-01 | United Technologies Corporation | Outer Airseal Abradable Rub Strip Manufacture Methods and Apparatus |
| US10315249B2 (en) | 2016-07-29 | 2019-06-11 | United Technologies Corporation | Abradable material feedstock and methods and apparatus for manufacture |
| JP6920676B2 (en) * | 2017-04-19 | 2021-08-18 | パナソニックＩｐマネジメント株式会社 | Fine particle production equipment and fine particle production method |
| CN108968701B (en) * | 2017-06-01 | 2022-04-05 | 佛山市顺德区美的电热电器制造有限公司 | Non-stick coating, preparation method thereof, pot and cooking equipment |
| CN108579173A (en) * | 2018-02-28 | 2018-09-28 | 铜陵市业强环保设备有限责任公司 | A kind of wheeled discharge device for scraper of spiral roll for carrier bar belt vacuum filter |
| EP3640229B1 (en) | 2018-10-18 | 2023-04-05 | Rolls-Royce Corporation | Cmas-resistant barrier coatings |
| IL300972A (en) | 2020-08-28 | 2023-04-01 | Plasma Surgical Invest Ltd | Systems, methods, and devices for generating predominantly radially expanded plasma flow |
Family Cites Families (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2423490A (en) * | 1944-05-20 | 1947-07-08 | Erhardt Richard | Metal spraying method |
| US2689801A (en) * | 1949-07-11 | 1954-09-21 | Koppers Co Inc | Methods of producing coated articles |
| US3020182A (en) * | 1958-09-26 | 1962-02-06 | Gen Electric | Ceramic-to-metal seal and method of making the same |
| US3352492A (en) * | 1960-08-02 | 1967-11-14 | Powder Melting Corp | Method of and apparatus for depositing metal powder |
| CH513252A (en) * | 1967-12-15 | 1971-09-30 | Castolin Soudures | Process for the thermal application of layers |
| US3864443A (en) * | 1970-05-27 | 1975-02-04 | Arthur Hopkins | Method of making light-weight concrete aggregate |
| CA941643A (en) * | 1971-03-25 | 1974-02-12 | Union Carbide Corporation | Metal porous abradable seals |
| US3723165A (en) * | 1971-10-04 | 1973-03-27 | Metco Inc | Mixed metal and high-temperature plastic flame spray powder and method of flame spraying same |
| US3912235A (en) * | 1974-12-19 | 1975-10-14 | United Technologies Corp | Multiblend powder mixing apparatus |
| SE422427B (en) * | 1977-10-17 | 1982-03-08 | Bertil Sandell | SET TO MANUFACTURE FIBER ARMED BUILDING CONSTRUCTIONS, SURFACES AND CLEAR AND DEVICE FOR IMPLEMENTATION OF THE SET |
| US4299865A (en) * | 1979-09-06 | 1981-11-10 | General Motors Corporation | Abradable ceramic seal and method of making same |
| US4336276A (en) * | 1980-03-30 | 1982-06-22 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Fully plasma-sprayed compliant backed ceramic turbine seal |
| FR2511362B1 (en) * | 1981-08-14 | 1987-01-02 | Nippon Steel Corp | REFRACTORY MOLDING OBTAINED BY FLAME SPRAYING, PARTICULARLY FOR REPAIRING HEAT TREATMENT OVENS |
| US4386112A (en) * | 1981-11-02 | 1983-05-31 | United Technologies Corporation | Co-spray abrasive coating |
| DE3422718A1 (en) * | 1984-06-19 | 1986-01-09 | Plasmainvent AG, Zug | VACUUM PLASMA COATING SYSTEM |
-
1986
- 1986-04-28 US US06/856,897 patent/US4696855A/en not_active Expired - Lifetime
-
1987
- 1987-04-21 CA CA000535134A patent/CA1257511A/en not_active Expired
- 1987-04-23 AU AU71956/87A patent/AU582989B2/en not_active Ceased
- 1987-04-24 EP EP87630074A patent/EP0244343B1/en not_active Expired - Lifetime
- 1987-04-24 DE DE8787630074T patent/DE3766408D1/en not_active Expired - Lifetime
- 1987-04-24 IL IL8232387A patent/IL82323A/en not_active IP Right Cessation
- 1987-04-27 YU YU76087A patent/YU45820B/en unknown
- 1987-04-27 DD DD87302163A patent/DD259586A5/en not_active IP Right Cessation
- 1987-04-27 NO NO871729A patent/NO170060C/en unknown
- 1987-04-27 BR BR8702018A patent/BR8702018A/en unknown
- 1987-04-28 CN CN87103228A patent/CN1013688B/en not_active Expired
- 1987-04-28 JP JP10613687A patent/JP2586904B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705464B (en) * | 2009-11-20 | 2011-10-26 | 华东理工大学 | Method for preparing thermally-sprayed iron-based powder porous surface heat exchange tube |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0244343B1 (en) | 1990-11-28 |
| JP2586904B2 (en) | 1997-03-05 |
| IL82323A0 (en) | 1987-10-30 |
| JPS62267460A (en) | 1987-11-20 |
| NO170060C (en) | 1992-09-09 |
| CN87103228A (en) | 1987-11-04 |
| NO170060B (en) | 1992-06-01 |
| IL82323A (en) | 1990-03-19 |
| YU45820B (en) | 1992-07-20 |
| DE3766408D1 (en) | 1991-01-10 |
| AU7195687A (en) | 1987-10-29 |
| NO871729L (en) | 1987-10-29 |
| DD259586A5 (en) | 1988-08-31 |
| US4696855A (en) | 1987-09-29 |
| YU76087A (en) | 1988-12-31 |
| EP0244343A3 (en) | 1988-11-02 |
| AU582989B2 (en) | 1989-04-13 |
| BR8702018A (en) | 1988-02-09 |
| NO871729D0 (en) | 1987-04-27 |
| EP0244343A2 (en) | 1987-11-04 |
| CA1257511A (en) | 1989-07-18 |
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